A grieving Liam Neeson greeted family members and friends at a private viewing for his wife, actress Natasha Richardson, whose sudden death after falling on a beginners' ski slope shocked the world. Neeson, who is Irish, appeared grateful for the outpouring of sympathy and was the last to leave the viewing late Friday at New York's American Irish Historical Society, where he was joined by the couple's sons, Micheal, 13, and Daniel, 12, as well as Richardson's mother, Vanessa Redgrave, and sister, Joely Richardson. An array of famous mourners came to express their sadness for the sudden loss of the talented actress who descended from one of Britain's greatest acting dynasties. Neeson hugged friends, after more than six hours of receiving condolences from acquaintances including Mike Nichols, Matthew Modine, Ralph Fiennes, Uma Thurman, Ethan Hawke, and Sarah Jessica Parker. Other visitors included Kenneth Cole, Laura Linney, Fisher Stevens, Stanley Tucci, Julianna Margulies and Mathilde Krim.